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公开(公告)号：US4437912A
公开(公告)日：1984-03-20
申请号：US321560
申请日：1981-11-16
申请人： Hiroshi Sakakima , Mitsuo Satomi , Harufumi Senno , Eiichi Hirota
发明人： Hiroshi Sakakima , Mitsuo Satomi , Harufumi Senno , Eiichi Hirota
CPC分类号： H01F1/153 , C22C45/008
摘要： Amorphous alloy consisting mainly of 60-94 atomic % of at least one transition metal, and over 2 atomic % but below 20 atomic % of niobium. The amorphous alloys according to the invention are high in wear resistance and corrosion resistance and have a high saturated magnetic flux density and soft magnetic properties. The amorphous alloys have particular utility as core materials for magnetic heads.
摘要翻译： 主要由60-94原子％的至少一种过渡金属和超过2原子％但低于20原子％的铌组成的无定形合金。 根据本发明的非晶合金具有高耐磨性和耐腐蚀性，并且具有高的饱和磁通密度和软磁性能。 非晶合金作为磁头的核心材料具有特殊的用途。
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公开(公告)号：US4288307A
公开(公告)日：1981-09-08
申请号：US122809
申请日：1980-02-19
申请人： Kiyotaka Wasa , Takao Tohda , Kazuo Yokoyama , Eiichi Hirota , Shigeru Hayakawa
发明人： Kiyotaka Wasa , Takao Tohda , Kazuo Yokoyama , Eiichi Hirota , Shigeru Hayakawa
CPC分类号： C23C14/044 , C23C14/547 , G11B5/232 , G11B5/235 , Y10T29/49057
摘要： In a method of making a magnetic gap by depositing a glass layer on a surface of magnetic head core materials by cathodic sputtering of a glass target and cementing a pair of the resulting glass-coated magnetic head core materials, the improvements constituted by monitoring the thickness of the sputtered glass layer by an interference of a light beam guided onto a surface of the magnetic head core materials during the deposition and using a sputtering apparatus having a sample holder beside the target for securing the magnetic core materials and a mask plate for achieving uniform thickness of the sputtered glass layer.The method makes possible production of magnetic heads having excellent electromagnetic conversion characteristics with high accuracy.
摘要翻译： 在通过玻璃靶的阴极溅射和固定一对所得玻璃涂覆磁头芯材料的磁头芯材料的表面上沉积玻璃层的方法中，通过监测厚度 通过在沉积期间引导到磁头芯材料的表面上的光束的干涉使用溅射装置，并且使用具有用于固定磁芯材料的靶材旁边的样品架的溅射装置和用于实现均匀的掩模板的溅射玻璃层 溅射玻璃层的厚度。 该方法可以高精度地制造具有优异的电磁转换特性的磁头。
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13.发明授权
公开(公告)号：US3954641A
公开(公告)日：1976-05-04
申请号：US393467
申请日：1973-08-31
CPC分类号： G03G5/16 , G11B5/70636
摘要： The present invention provides a ferromagnetic chromium oxide powder having an additive of sulfur incorporated therewith, which powder has a lower curie temperature than that of pure chromium dioxide powder and a high saturation magnetization. Said powder has a composition in weight percent, consisting essentially of 61.90 to 57.22 percent of chromium and 0.0038 to 15.10 percent of sulfur. Moreover, the ferromagnetic chromium oxide powder having a combination of sulfur and further additives selected from tellurium, tin and antimony has a lower Curie temperature than that of pure chromium dioxide together with a high intrinsic coercive force and a high saturation magnetization. The particles of these powders are in a uniform acicular shape and are useful in magnetic recording media, especially for slave tapes in thermo-magnetic duplication.
摘要翻译： 本发明提供一种具有与其结合的硫的添加剂的铁磁性氧化铬粉末，该粉末具有比纯二氧化铬粉末低的居里温度和高的饱和磁化强度。 所述粉末具有重量百分比的组成，基本上由61.90至57.22％的铬和0.0038至15.10％的硫组成。 此外，具有硫的组合的铁磁性氧化铬粉末和选自碲，锡和锑的其他添加剂的居里温度低于纯二氧化铬，具有高的固有矫顽力和高的饱和磁化强度。 这些粉末的颗粒具有均匀的针状，并且可用于磁记录介质，特别是对于热磁复制中的从带。
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公开(公告)号：US5358576A
公开(公告)日：1994-10-25
申请号：US157112
申请日：1980-06-06
CPC分类号： C22C45/04 , H01F1/15316
摘要： In amorphous materials including at least one iron-transition metal of Fe, Co, and Ni, and at least one metalloid of B, C, Si, and P, excellent magnetic characteristics can be provided subject to the condition that 0.5 to 10 atomic % of the above-described iron-transition metals are substituted by Mn. In addition, when the amorphous material partially substituted with Mn as described above is further comprised of at least one element selected from Groups IIIa, IVa, Va, and VIa in the periodic table, the crystallization temperature is considerably raised.
摘要翻译： 在包含Fe，Co和Ni的至少一种铁过渡金属和至少一种B，C，Si和P的准金属的无定形材料中，可以提供优选的磁特性，条件是以0.5至10原子％ 的上述铁 - 过渡金属被Mn取代。 此外，当如上所述被Mn部分取代的无定形材料进一步包含选自元素周期表中的IIIa，IVa，Va和VIa族中的至少一种元素时，结晶温度显着升高。
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公开(公告)号：US4488195A
公开(公告)日：1984-12-11
申请号：US358208
申请日：1982-03-15
IPC分类号： C22C45/04 , G11B5/127 , G11B5/147 , G11B5/23 , G11B5/235 , G11B5/255 , H01F1/153 , G11B5/12 , G11B5/16 , G11B5/251 , H01F1/04
CPC分类号： G11B5/127 , C22C45/04 , G11B5/1475 , H01F1/15316 , H01F1/15383
摘要： A magnetic head and a method of producing same, wherein the magnetic head includes a head core formed of metallic magnetic material and has a head gap formed in a portion of the head core adapted to be positioned against a recording medium, and windings mounted on the head core. The material forming the head core is amorphous and has the following composition:(Co.sub.1-x M'.sub.x).sub.a Zr.sub.b Si.sub.c B.sub.d, where M' is at least one element selected from the group consisting of Cr, Mn, Fe Ni, Nb, Mo, W and Ti, 0.03.ltoreq.x.ltoreq.0.15, 3.ltoreq.b.ltoreq.25, 0.ltoreq.c.ltoreq.20, 0.ltoreq.d.ltoreq.5, and a+b+c+d=100.
摘要翻译： 一种磁头及其制造方法，其中磁头包括由金属磁性材料形成的磁头芯，并且具有形成在磁头芯部的适于抵靠记录介质的部分中的磁头间隙，以及安装在磁头上的绕组 头核心。 形成头芯的材料是无定形的，具有以下组成：（Co1-xM'x）a Zrb SicBd，其中M'是选自Cr，Mn，FeNi，Nb，Mo中的至少一种元素 ，W和Ti，0.03≤x≤0.15，3≤b≤25,0≤c≤20,0≤d≤5，a + b + c + d = 100。
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公开(公告)号：US4288260A
公开(公告)日：1981-09-08
申请号：US134132
申请日：1980-03-26
申请人： Harufumi Senno , Hiroshi Sakakima , Yukihiro Yanagiuchi , Tsuneo Inoue , Masatsugu Yamaguchi , Eiichi Hirota
发明人： Harufumi Senno , Hiroshi Sakakima , Yukihiro Yanagiuchi , Tsuneo Inoue , Masatsugu Yamaguchi , Eiichi Hirota
CPC分类号： H01F1/15341 , C21D9/56 , C21D9/564
摘要： A method of heat treatments of amorphous alloy ribbons comprises the sequential steps of; grinding amorphous alloy ribbon continuously fed at a predetermined speed (V) selectively varied in the range of 1 cm/sec.ltoreq.V.ltoreq.50 cm/sec, to uniformly finish the ribbon, and successively, heat-treating the ribbon with its surface contacting a stationary or rotating heating body having a surface temperature (T) defined in the range of (T.sub.cry -200.degree. C.).ltoreq.V.ltoreq.(T.sub.cry +50.degree. C.), where T.sub.cry is a crystallization point temperature of the alloy, to uniformly enhance the magnetic properties of the ribbon, and to remove the specific curlings inherently caused by so-called splat cooling manufacturing method, without causing any developments of brittleness of the ribbon mentioned above.
摘要翻译： 非晶合金带的热处理方法包括以下步骤： 在以1cm / sec×50cm / sec的范围内选择性地变化的以预定速度（V）连续进料的非晶态合金带的研磨，以使丝条均匀地完成，并且随后用 其表面接触表面温度（T）在（Tcry-200℃）=（Tcry + 50℃）范围内的固定或旋转加热体，其中Tcry为结晶 以均匀地提高带的磁特性，并且消除由所谓的丝锥冷却制造方法固有地引起的特定卷曲，而不会引起上述带的脆性的任何变化。
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公开(公告)号：US4064224A
公开(公告)日：1977-12-20
申请号：US653120
申请日：1976-01-28
申请人： Takashi Kawamata , Tsuneo Inoue , Eiichi Hirota
发明人： Takashi Kawamata , Tsuneo Inoue , Eiichi Hirota
CPC分类号： C01G23/005 , C01P2002/02 , C01P2004/10 , C01P2004/54 , C01P2004/60 , C01P2004/61 , C01P2006/60
摘要： A method of making fibrous alkali titanates comprising the steps of preparing a mixture including a titanium compound and an alkali metal compound in a molar ratio of 1.0 to 8.0 in terms of TiO.sub.2 :M.sub.2 O (M: Na, K, Rb, Cs), heating said mixture at a temperature of 1200.degree. to 1600.degree. C to the molten (liquid) phase, cooling the thus heated mixture to room temperature , and washing the thus treated product. This method is advantageous because fibrous alkali titanates of large ratio of length to diameter can be easily produced in high yield.
摘要翻译： 一种制备纤维状碱式钛酸盐的方法，包括以TiO 2 :M 2 O（M：Na，K，Rb，Cs）换算，摩尔比为1.0-8.0的钛化合物和碱金属化合物的混合物，加热 所述混合物在1200至1600℃的温度下与熔融（液体）相一起冷却，将如此加热的混合物冷却至室温，并洗涤如此处理的产物。 该方法是有利的，因为可以容易地以高产率生产长径比大的纤维状碱式钛酸盐。
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